Multiple Choice
Reaction rates increase with temperature mainly because a rise in temperature increases
A) the number of ions.
B) the number of polar molecules.
C) the number of activated molecules.
D) the average length of time between molecular collision.
Correct Answer:
Verified
Correct Answer:
Verified
Q30: The atomic mass of N is 14
Q31: Sulfur has an atomic mass of 32
Q32: The number of formula units in a
Q33: When a gas reaction involves an increase
Q34: When a substance loses electrons in a
Q35: When a hydrogen fuel cell produces an
Q36: The decomposition of an unstable compound usually<br>A)
Q37: Chemical reactions in solution do not depend
Q38: Oxidation-reduction reactions are not involved in<br>A) electrolysis.<br>B)
Q40: Most chemical reactions<br>A) absorb energy.<br>B) occur at